For #4, one of your classmates gave the answer, 72. What mistake did they make?
Please answer correctly and no giving links.
The sum of two numbers is 11. Twice the first number minus the second number is 7
Find the numbers.
Answer:
6 and 5
Step-by-step explanation:
6 * 2 = 12
12 - 5 = 7
6 and 5 is your answer
Answer: 6; 5
Step-by-step explanation:
Based on the questions, we set up two equations, let the x be the first number, and y be the second number.
x + y = 11
2x - y= 7
x = 11 - y [Subtract y from both side]
2x - y = 7
2(11 - y) - y = 7 [Plug in 11-y for x, solve for y]
22 - 2y - y = 7
22 - 3y = 7
-3y = -15 [Subtract 22 from both side]
y = 5
x + y = 11 [Plug in 5 for y, solve for x]
x + 5 = 11 [Subtract 5 from both side]
x = 6
Mrs. Berry is purchasing a juicer which regularly sells for $390. She has a coupon for a 25% discount. The sales tax in her area is 7.5%. What will be the final cost of the juicer?
A $104.81 B $419.25 C. $314.44 D. $392.38
Answer:
C. $314.44
Step-by-step explanation:
$390 x 0.25 Discount = $97.5
$97.5 x 1.075 Sales Tax = $104.81 <---this is how much you save
$390 - $104.81 = $314.44 Total Price
Savings: $104.81
Tax: $21.94
Total Payment: $314.44
Is 8 a solution to 1 2 x+9=13? Explain.
[tex]12x+9=13\\2x=4\\x=2[/tex]
So no.
Name the angle and find the measure of each angle indicated
Answer:
9= 132 10= 105
Step-by-step explanation:
30 POINTS
Name the three-dimensional figure shown in the picture.
A three dimensional figure with a regular four sided polygon as the base and four sides made up of three sided polygons is shown.
A. triangular prism
B. square prism
C. square pyramid
D. cone
Answer:
A:triangular prism?!!
Please help me find the area of the shape
Answer:
96 units^2
Step-by-step explanation:
area of a triangle A=bxh/2
substitute b with 8 and h with 24
A=8x24/2
multiply
A=193/2
the divide
A=96
NEED ANSWERS PLSS HELP
Leah spent 1 hour 32 minutes less than Carl reading last week. Carl spent 51 minutes less than Pete. Pete spent 3 hours reading. How long did Leah spend reading?
Answer:
37 minutes
Step-by-step explanation:
Carl spent 51 minutes less than Pete, so subtract.
3 hours = 180 minutes
180 - 51 = 129 minutes = 2 hours and 9 minutes
And Leah spent 1 hour 32 minutes less than Carl, so subtract again.
1 hour = 60 minutes + 32 = 92 minutes
129 - 92 = 37 minutes.
The diagram below gives the lengths of all but one side of pentagon ABCDE. What is the
perimeter of pentagon ABCDE?
12 cm
Perimeter =
8 cm
4cm-
15 cm
hurry asap i need it by tomorrow!!
Answer:
44
Step-by-step explanation:
[tex]BC^{2} = (15-12)^{2} + (8-4)^{2}\\BC^{2} =9 + 16\\BC = \sqrt{9+16} \\BC = \sqrt{25} \\BC = 5[/tex]
P = 12 + 15 + 8 + 4 + 5 = 44
The length of a 1-inch paperclip is about 1.6 x 10−5 miles. It takes about 1.5 x 1010 paperclips linked together to reach the moon. What is the approximate distance to the moon?
A. 3.1x 10^5 miles
B. 2.4 x 10^-2 miles
C. 3.1x10^-2 miles
D. 2.4 x 10^5 miles
Answer:
D. 2.4 x 10⁵ miles.
Step-by-step explanation:
Given;
length of 1-inch paperclip, L= 1.6 x 10⁻⁵ miles
number of paperclips linked together to reach the moon, n = 1.5 x 10¹⁰
The approximate distance to the moon is calculated as follows;
distance to the moon, d = L x n
distance to the moon, d = 1.6 x 10⁻⁵ miles x 1.5 x 10¹⁰
distance to the moon, d = 2.4 x 10⁵ miles
Therefore, the approximate distance to the moon is 2.4 x 10⁵ miles.
The correct option is D.
The two rectangles below are similar. What is the measurement of the missing side of the rectangle?
A. 108 mm
B. 81 mm
C. 45 mm
D. 30 mm
Answer:B
Step-by-step explanation:
The table shows all of the possible outcomes of rolling two dice. If Jerome were to roll two dice 48 times, about how many times could he expect to roll doubles?.
The approximate volume is ___ cubic centimeters. Do not round your answer.
Use 3.14 for π.
Answer:
:>
Step-by-step explanation:
yufgvhjbfhbvnfmnbjgfkjbingmknb jgkfbm jnnmnnnnnn
Billy wants to hire a plumber to fix a faucet at his house. The plumber charges $125 initial fee and $85 per hour he is working.
Answer:
85x + 125 = y
Step-by-step explanation:
Let x = the amount of hours worked
Let y = the total cost to pay for this plumber
85 is the hourly pay so we multiply by the amount of hours worked to find the cost per hours. We then add that to the initial cost of 125 and we get the total cost.
Which shows how to rewrite 4 x 47
using the Distributive Property?
Answer:
B) 4(40 + 7)
Step-by-step explanation:
First: Add 40 + 7 = 47
Second: Multiply 47 x 4 = 188
HELP!
x^2 (x to the 2nd power) + 3x + 3
Answer:
if youre factoring, there is no possible factors
if youre solving for x, it is
x =−1.5+0.87i
x =−1.5-0.87i
i believe
Step-by-step explanation:
quadratic equation
please help me i would really appreciate it
i will mark brainliest if you dont play around
Answer:
Step-by-step explanation:
The total number of triangles is 5
The total number of all shapes is 13
The ratio is triangles to total
The ratio is 5 to 13
Note
This problem is not very well defined. Notice the circle at the bottom left. It's less than 1/2 a circle. Question: do you count it or don't you. The answer to that question will influence other partial figures.
All you do is count the total number of figures and the number of triangles. I did count the part circle on the lower left as with the triangles that are missing their tops.
Need help quick! Will give brainliest to first right answer.
Which system of equations has no solution?
O 5x+5y = 10 and 2x+2y=4
O 3x-6y = 4 and - 4x+8y=7
O 6x+2y = 6 and 7x+3y=9
O 3x-4y = 16 and 2x+3y = 5
Answer:
the first one or the last one
Step-by-step explanation:
5x+5y = 10 and 2x+2y=4
0 = 0
3x-6y = 4 and - 4x+8y=7
0 = 37 / 3
6x+2y = 6 and 7x+3y=9
0 = 3
3x-4y = 16 and 2x+3y = 5
x=4 and y=−1
Write an explicit formula for a_na
n
, the n^{\text{th}}n
th
term of the sequence 45, 15, 5, ...45,15,5,....
Answer:
the answer is 3n+7 please do you get it
What does the variable "b" stand for in exponential functions represented by the equation y = a(b)ˣ
Answer:
The rate of growth or decay
Explanation:
If b was above 1 (i.e. 1.01, 1.02) then it is an exponential growth function and if b was below 1, then it is an exponential decay function
A grocery store sells a bag of 8 oranges for $6.24. If Chase spent $8.58 on oranges, how many did he buy?
Answer:
11 oranges
Step-by-step explanation:
6.24÷8=0.78
1 orange=0.78
8.58÷0.78=11
Chase bought 11 oranges.
Hope this helped!
i have two questions
question 1:
N% of 15 is 6
Question 2:
18 is N% of 32
Whats the answer?
Answer for question 1 is Percentage Calculator: 6 is what percent of 15? = 40.
Answer for question 2 is What is 18 percent (calculated percentage %) of number 32? Answer: 5.76.
hope it helps. Please mark me Brainleist please.
Answer:
1. 40%
2. 56.25%
Step-by-step explanation:
1. N% of 15 = 6
N/100 x 15 =6
N = (6 × 100)/15
N = 40
2.N% of 32 = 18
N/100 x 32 = 18
N = (18 x 100) /32
N= 56.25
Please help! 3/20, will give brainliest. I do not tolerate spam answers!
Factor the equation. [tex]x^2-x-12[/tex]
Answer:
(x - 4)(x + 3)
Step-by-step explanation:
Given
x² - x - 12
Consider the factors of the constant term (- 12) which sum to give the coefficient of the x- term (- 1)
The factors are - 4 and + 3, since
- 4 × + 3 = - 12 and - 4 + 3 = - 1, then
x² - x - 12 = (x - 4)(x + 3) ← in factored form
What method can be use to prove the triangles below are congruent?
options:
not congruent
sas
asa
sss
a is defiened as a number that can be expressed in the form p/q where p and q are integers and q is not = 0
Answer:
a is a rational number
Step-by-step explanation:
A number that can be expressed in the form p/q where p and q are integers and q is not = 0
Above is the definition of rational number.
So, a is a rational number
What is the solution to -3x+23-7?
O x>-12
O x>12
O x<12
O x<-12
The probability event A is .45, the probability of event B is.20. If A and B are independent events, what is the probability of A and B, P(A and B)?
0 2.25
25
.65
.09
Answer:
.09
Step-by-step explanation:
To find the probability of independent events, you multiply their individual probability.
so, .45 x .20 = .09
Slope
Rate Of Change
Pls Help
Answer:
-1/2
Step-by-step explanation: